1.5028 Spring Steel

1 1.5028 Spring Steel 1.Dia 80-800mm length:2000-13000mm 2 Technique:Forged 3.Delivery Time: 30 days

1. Standards: ASTM9260/DIN:1.0906 1.5028 1.0961/JIS SUP7 /GB:60Si2MnA

 

 

2. Surface: Black surface/Turned/Ground

 

 

3. Process:

   EAF+LF+VD+ Forged+ Heat Treatment (Annealed, Normalized, Q+T)

 

4. Machine Capability

 

    Tensile strength (N/mm2Mpa): >=1372(140)

    Elongation: >=5

    Yield strength: >=1225(125)

    Hardness: <=321HB

    Reduction of area:>=30

 

5. Chemical Composition (%): www.forgedroundbar.com

C	Si	Mn	S	P	Cr	Ni	Cu	V	B
0.52-0.60	1.50-2.00	1.00-1.30	0.035(max)	0.035(max)	0.35(max)	0.35(max)	0.25(max)	0.08-0.16	0.0005-0.0035

6,Heat treatment

Annealing	750C - furnace cooling - HBS less than 222
Normalizing	830 ~ 860C - air cooling - HBS less than 302
Quenching	850C  oil  HRC>61
HRC after tempering	150C 61,200 C - 60,300 C - 56,400 C - 51, 500 C - 43,550 C - 38,600 C - 33,650 C – 29

 6.Inspection: 100% Ultrasonic according to the test standards:SEP1921-84,GR.3 CLASS C/C or by SGS ,AHK or Alex Stewart

7. Packing situation: standard seaworthy packing or as customer required

8. Delivery time: 20 days after order confirmed

9. Payment: T/T or L/C at sight.

Note: 

1. According to national standard (GB)for our products, if not, supply according to national standards(GB) or agreement.

2. We can not only provide electric furnace +LF+VD and electroslag re-melting(ESR)steel forging materials, but also forging products of piece, bar, etc.

3. Our company is equipped with roll equipment and can provide our customers with roll billets or finished.

4. Please send us your detailed specifications when inquire.We will reply to you ASAP.